Rotary press waste removal and folding apparatus

ABSTRACT

An apparatus for the removal of waste printed material used in conjunction with a folding device on a rotary printing press. The apparatus includes a conveyor system having a pivotable cantilevered conveyor and a fixed conveyor. Both conveyors have conveyor belts which are capable of running independently of each other. The cantilevered conveyor with its independent delivery belt can be pivoted by a suitable adjusting device that is actuated by a timer. The timer also activates a reversible motor, connected to the cantilevered conveyor so that as this conveyor is rotated downwardly, the motor reverses its direction and speeds up its conveyor belt, thus depositing wasted printed material in a remote location for subsequent removal.

United States Patent inventor Karl A. Klingler Frankenthal, Ptalz, Germany [21 Appl. No. 783,629 [22] Filed Dec. 13,1968 [45] Patented Sept. 21, 1971 [73] Assignee Sehnellpresseniabrik Frankenthal, Albert & Cie Aktiengesellschaft Frankenthal, Pfalz, Germany [3 2] Priority Dec. 18, 1967 [3 3] Germany [31] P161130L2 [54] ROTARY PRESS WASTE REMOVAL AND FOLDING APPARATUS 2 Claims, 1 Drawing Fig.

[52] US. Cl 156/361 [51] lnt.Cl B32b 31/14 [50] Field of Search. 156/361; 27l/81,64, 71

[56] References Cited UNITED STATES PATENTS 2,815,949 12/1957 Faeber 271/64 3,405,502 10/1968 Badder 156/361 3,438,624 4/1969 Behringer 271/64 FOREIGN PATENTS 726,293 10/1942 Germany 271/81 259,137 6/1949 Switzerland 271/81 Primary Examiner-Benjamin A. Borchelt Assistant Examiner-D. A. Ben't Att0rneyAllison C. Collard ABSTRACT: An apparatus for the removal of waste printed material used in conjunction with a folding device on a rotary printing press. The apparatus includes a conveyor system having a pivotable cantilevered conveyor and a fixed conveyor. Both conveyors have conveyor belts which are capable of running independently of each other. The cantilevered conveyor with its independent delivery belt can be pivoted by a suitable adjusting device that is actuated by a timer. The timer also activates a reversible motor, connected to the cantilevered conveyor so that as this conveyor is rotated downwardly, the motor reverses its direction and speeds up its conveyor belt, thus depositing wasted printed material in a remote location for subsequent removal.

PATENTED SEP21 19?! 3.607 .551

Inventor. KARL A. KLINGLDI ROTARY PRESS WASTE REMOVAL AND FOLDING APPARATUS This invention relates in general to an apparatus for the removal of waste printed material and an improved folding device used on a rotary printing press.

More specifically, this invention relates to an apparatus for removal of waste printed material and an improved folding device which consists of a self-adhering device for the exchange of an old paper roll onto a new one. The device also consists of a paddle wheel to put the printed material onto a table in staggered relationship. in this type of a rotating printing press, the new roll of paper is adhered to the old roll of paper during the operation of the rotary printing press, and is then cut off.

In the area where the old roll of paper and the new roll of paper are bonded together, a number of wasted prints of material are created which are not used. However, it is very difficult to recognize the prints which are present between the old and the new roll of paper, because the printed material is put on the viewing table in a folded and staggered manner. The point of adherence, for example, in a magazine, may not be directly recognized by the operator of the printing press, because the point of adherence may be located on the inside of the fold. Moreover, it is rather time consuming and expensive to sort out the wasted print from a large amount of printed and folded material. It is particularly difficult for personnel in the shipping department to sort out the wasted print, because they usually do not know at what point a new roll of paper was adhered to the old roll of paper. Accordingly, the present invention overcomes these above-described difficulties by providing the cantilever device of the rotary printing press with two parts, so that the cantilever part, which is immediately beneath the paddle wheel, may be selectively adjusted with respect to the direction of movement of the other cantilever device. Thus, this cantilever device is pivotable downwardly, with increased circumferential speed toward the stack of printed material. The subject invention further selectively sorts out the wasted print material without disturbing the printed material in front of the wasted print and the subsequent printed material. This is achieved by means of a time switch which is coupled to the changing mechanism of the paper rolls so that at the command of adhering and cutting, after a predetermined amount of printed matter has passed, the cantilever part is automatically pivoted out of position and is driven backwardly with increased speed. in this way all the wasted print material is sorted out in a foolproof manner without employing additional labor.

[t is therefore an object according to the present invention to provide an apparatus for the removal of waste printed material for use on a rotary printing press that exchanges the old paper roll with a new paper roll.

it is another object according to the present invention to provide an improved folding device for use on rotary printing presses, which contains a self-adhering device in order to sort out the wasted print between rolls of paper.

it is still a further object according to the present invention to provide an apparatus for removal of waste printed material which is simple in design, easy to manufacture and reliable in operation.

Other objects and features of the present invention will become apparent from the following detailed description considered in connection with the accompanying drawing which discloses an embodiment of the present invention. It should be understood, however, that the drawing is designed for the purpose of illustration only and not as a definition of the limits of the invention, as to which reference should be made to the appended claims.

The FIGURE of the drawing discloses one embodiment of an apparatus for removal of waste printed material and an improved folding device according to the invention.

Referring to the drawing, the web of paper I, which is released by the rotary printing press (not shown) is guided via funnel 2 and traction cylinders 3, 4 and 5, to the folding device. The folding apparatus, for example, comprises a cutting cylinder 6, a groove and folding knife cylinder 7, and a folding cylinder 8. A paddle wheel 9 is provided at the folding 5 apparatus, which disposes the printed material in staggered relationship onto a conveyor table. The table consists of two conveyors l0 and and are arranged to travel in the same direction of movement as the printed material, as shown by the arrows, whereby conveyor 10 is shown in the upwardly directed position. Cantilevered conveyor 10' is pivotably mounted on cylinder 11 as shown in the drawing. The pivoting of cantilevered conveyor 10 is executed in order to sort out and dispose of the wasted printed material onto stack 12, or the like, by simultaneously changing the movement of direction and increasing the circumferential speed of conveyor 10'.

The present invention provides a conveyor system having a cantilevered conveyor 10' which is immediately beneath paddle wheel 9 and may be selectively adjusted with respect to the direction of movement of the fixed conveyor 10. Thus, cantil evered conveyor 10' is pivotable downwardly on pivot 11 by means of actuator 17, and driven with increased circumferential speed in a direction opposite to that for fixed conveyor 10 by means of motor drive 15, and drive belt 16 cou pled to pivot 11. The subject invention sorts out the wasted print material without disturbing the printed material in front of the wasted print and the subsequently following printed material by utilizing a time switch 14 coupled to motor 15 and actuator 17, that is responsive through line 13 to the adhering and cutting" of the paper. Time switch 14 includes a delay to account for the passage of a predetermined amount of printed paper before cantilevered conveyor 10 is automatically pivoted out of its normal position by actuator 17 and driven backwardly with increased speed by motor 15. In this manner, the wasted material is sorted out automatically, and cantilevered conveyor 10 returns to its initial position after having rejected the wasted print.

Therefore, while only a single embodiment of the present invention has been shown and described, it will he understood that many changes and modifications may be made thereunto, without departing from the spirit and scope of the invention as defined by the appended claims.

What is claimed is:

1. An apparatus for the removal of wasted printed material into a collection stack following the adherence of a new material roll to a succeeding roll and an improved folding device for use on a rotary printing press comprising;

a cantilevered conveyor pivoted on one end,

a fixed conveyor having one end disposed adjacent to the pivoted end of said cantilevered conveyor,

drive means coupled to said cantilevered conveyor for initially driving said cantilevered conveyor in the same direction at approximately the speed as said fixed conveyor,

a timing switch responsive to the adherence of a new material roll for operating said drive means to run said cantilevered conveyor in an opposite direction at in creased speed, and

an actuator connected to said timing switch for pivoting said cantilevered conveyor toward the collection stack.

2. The apparatus as defined in claim I, wherein said improved folding device additionally comprises;

a cutting cylinder for receiving and cutting the printed material,

a folding knife cylinder engaged to said cutting cylinder and having disposed on its surface a plurality of grooves and folding knives for cutting the printed material into pieces,

a folding cylinder following said cutting and knife cylinder for folding the printed material pieces, and

a paddle wheel following said folding cylinder for disposing said printed material pieces in staggered relationship onto said fixed conveyor. 

2. The apparatus as defined in claim 1, wherein said improved folding device additionally comprises; a cutting cylinder for receiving and cutting the printed material, a folding knife cylinder engaged to said cutting cylinder and having disposed on its surface a plurality of grooves and folding knives for cutting the printed material into pieces, a folding cylinder following said cutting and knife cylinder for folding the printed material pieces, and a paddle wheel following said folding cylinder for disposing said printed material pieces in staggered relationship onto said fixed conveyor. 